Sub-Ohm Tank Reviews


The T-VCT by OBS is another Sub-Ohm tank for your consideration. The T-VCT has a top filling design and a capacity of 6ml. In addition it features juice flow control via a adjustable middle post which you can use to change how much e-liquid flows to your coil.

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T-VCT Sub-Ohm Tank by OBS

The T-VCT by OBS is another Sub-Ohm tank for your consideration. The T-VCT has a top filling design and a capacity of 6ml. In addition it features juice flow control via a adjustable middle post which you can use to change how much e-liquid flows to your coil.

OBS T-VCT Sub-Ohm Tank Features

  • Stainless steel construction
  • Pyrex glass tank
  • 510 threaded
  • 6ml capacity
  • 22mm diameter
  • Top filling
  • Coils use 100% Japanese cotton
  • Baffle plate to prevent the juice from being inhaled when vaping
  • Juice flow adjustment
  • Adjustable airflow
  • Wattage Range:10-35W (0.5 Ohm coil) 10-50W (0.25 Ohm coil)

What's in the box?

  • 1x OBS T-VCT Sub-Ohm Tank
  • 1x 0.5 Ohm BVC Coil
  • 1x 0.25 Ohm BTDC Coil
  • Product Manual

This product is well packaged in a hard plastic box with a press fit lid and everything is held securely in a thick foam inlay. The product does include a user manual so even those new to Sub-Ohm tanks shouldn't have any issues.

OBS T-VCT Sub-Ohm Tank Styling

The T-VCT is a very well put together tank. It feels very solid in the hand and everything fits together extremely well. When I first took the tank out of the box I was happy to find it was completely free of machine oil but I did give it a quick rinse anyway.

The looks of the tank are really nice with the OBS logo engraved on one side and on the other side you can find the engraved head of a alien Grey with “T-VCT” written underneath it.

The drip tip is held in very securely and it is completely wobble free and all my other drip tips have fitted this tank without issue.The 510 pin looks to be made out of brass and is non adjustable but the tank has fitted completely flush on all of my mods.

Overall I find the T-VCT to be very well manufactured but I do have one minor issue with it. The tank frame and glass are machined as one piece and can't be broken down for individual cleaning, whether this will be a deal breaker or not depends on the individual.

Ease of use

The airflow control feels very good being neither too tight or too loose. The airflow slots are suitably wide and it can be closed down entirely for those that wish to do primer inhales.

The juice flow control works well and is achieved by turning the top cap and as you do so you will see that the holes near the bottom of the coil close off. Replacing the coil is very straightforward and is a case of simply unscrewing the base.

One important thing to note is that if you unscrew the base and look up the main chimney you will see a piece of steel like a bar cutting across and this works as a spit back guard so you won't end up with juice in your mouth.

Filling this tank reminds me a lot of the Youde Zephyrus. You unscrew the top cap and beneath it you will find two fill holes that have rubber stoppers/seals to prevent leakage. It's really just a case of putting the nozzle of your juice bottles into one of the holes and filling the tank. Take care when using dropper type bottles because in my case one the stoppers stuck to the dropper pipette and it ended up floating in the bottle. I then had to spend five minutes fishing it out with a pair of tweezers which wasn't what I'd call fun.

How does it vape?

I filled the tank with Epic Juice's Yosi which is a RY4 type of juice. I attached the tank to my Sigelei 100w+ and my first vape was at 25 Watts. I found the vape to be rather nice with flavour being above average. I don't think it is quite as flavoursome as the Sense Herakles or the Freemax Starre but the T-VCT is definitely better than the Atlantis and certainly preferable in my opinion to the Kanger Subtank. 

Airflow is good but my personal preference would be for something a little more open, however it should suit most typical users. Using the 0.5 Ohm coil, 25 Watts doesn't seem enough. Increasing that to between 28-30 Watts does make for a really decent vape. The 0.5 Ohm can handle a maximum of 35 Watts and if you go over that you will get dry hits and risk burning your coil. The 0.25 Ohm coil can handle up to a maximum of 50 Watts and I found between 35-40 Watts made for a great vape

Cloud production is good but it is not a massive room fogger so if you want something that puts out huge amounts of clouds then you should look at something else entirely.

One really great feature of this tank is it simply has not leaked at all. I have left the tank full lying on it's side for two nights in a row and there has not been a single leak.

I think one of the nicest aspects about this tank is that it doesn't require some obscenely high wattage to get a good vape out of it so for those that have more modest mods this is suitable tank to purchase.


In summing up I find the OBS T-VCT to be a very worthwhile tank. It is well constructed, durable and offers a vape with both good flavour and decent enough clouds. My main gripe with it is that the glass and steel frame for this tank cannot be completely broken down for cleaning and if by some accident you break the glass you will need a entirely new tank.

Another initial con for me was that this tank does not come with a RBA deck but after investigating on the internet it seems a rebuildable coil is available called the OBS T-VCT RBA Coil so in the long term you should never have to buy another coil again. 

Apparently OBS are also manufacturing Ni200 coils and those are coming very soon, so this tank has good potential and might be just the sort of thing you are looking for.

The real benefits of this tank are that it is well made, doesn't leak, offers good flavour, large juice capacity, reasonable clouds and is top filling. With the added option of using rebuildable coil heads and also with the Ni200 coils coming soon this tank is a very worthwhile purchase.

VapeMaster avatar


Reviewer at POTV
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